Description: Meter has been tested and works well as it should. Very handy tool for the shack. Meter will be professionally packed for safe transport to your door. Connect the MFJ-834 Coax In-Line RF Ammeter between your antenna and tuner/ transmitter/amplifier and measure antenna feedline current in 3 calibrated ranges. Use it for tuning your antenna tuner/ transmitter/amplifier for maximum radiated power, for determining antenna feedpoint impedance, for comparing antennas and tuners, for trouble shooting and for checking for changes. Tuning for maximum feedline current for any given antenna always gives maximum radiated power! Any adjustment - transceiver or amplifier tuning/loading controls, antenna tuner settings, whatever - that increases feedline current improves power transfer and gives you a stronger radiated signal. Radiated power increases rapidly because power increases as the square of the current. Minimum SWR does not always mean maximum radiated power -- your tuner or lossy coax may be dissipating power -- and you may not get peak output power even if your tuner or amplifier is properly tuned. Use the MFJ-834 to determine best antenna tuner settings and to compare various tuners. Calculate your antenna feedpoint impedance by dividing your applied power by the square of the feedpoint current. Your antenna can change when you apply power -- insulators break down, traps heat up, capacitors leak -- and your feedpoint impedance may be drastically different from your SWR Analyzer measurements. MFJ RF ammeters are rugged, read acc-urately over 1-30MHz in three linear ranges (.3, 1, 3 Amps) and barely perturb the antenna. Uses SO-239 connectors. Measures 6" W x 3 ½"H x 4 ½"D Please examine the photographs as there are an important part of the description in every listing. Please examine the photographs as there are an important part of the description in every listing. If it is not shown in the photos or mentioned in the description, it is not included! 73s & check out my other listings for all kinds of upcoming ham radio gear Shipping costs quoted are for the 48 lower states ONLY. Alaska & HI to be determined Questions ? For fastest response see my ebay about me page to contact me. Have some ham gear your not using ? Contact me I will buy it FAST! I will pick up or arrange shipping. 73s & Check out my other items! Sign up for my email newsletters by adding my eBay Store to your Favorites to see all kinds of upcoming ham gear listings. Shipping costs quoted are for the lower 48 states only. Alaska & Hawaii will be determined All items are offered as is and all sales are final. I will only accept a return if the item is not as described. Any claims of items not as described MUST be made within 24 hours of delivery. NO exceptions !!! By purchasing an item you are by default agreeing to these clearly visible terms. No more of this nonsense of having an item for weeks or months and claiming "I just tried it and it does not work" Or "I did not have an antenna or power supply until weeks after purchase" If you plan on being "out of town" for weeks when the item is delivered DON'T buy it, wait till you return. Also I will not accept any returns at any time on any item where our anti tamper sticker has been disturbed. No exceptions
Price: 99.99 USD
Location: Guilford, Connecticut
End Time: 2025-02-14T07:40:54.000Z
Shipping Cost: 9.98 USD
Product Images
Item Specifics
All returns accepted: ReturnsNotAccepted
Brand: MFJ
Compatible Brand: Does Not Apply
Type: RF Ammeter
